ZIP 82420 (Cowley, WY) truck route planning & crash data
Plan safer truck routes around ZIP 82420: commercial truck and garbage truck crashes here and in Big Horn County, dangerous roads, seasonality and route safety data for fleets.
Where fatal truck crashes happened
Risk scorecard
Key findings
Snapshot
Crashes by month
Garbage trucks vs all trucks
0 of 92 truck crashes since 2015.
Deadliest roads
How Big Horn County compares with Wyoming
Big Horn County against Wyoming and the US, 2015–2025 (years with complete crash reporting). Per-resident rates make big and small places comparable.
Where Big Horn County stands out
Full comparison
| Measure (2015–2025) | Big Horn County | Wyoming | United States | vs state |
|---|---|---|---|---|
| Crashes per 100k residents / yr | 65.5 | 187.2 | 49.7 | 65% below the state |
| Deaths per 100 crashes | 4.6 | 4.5 | 3.4 | same |
| Injuries per crash | 0.56 | 0.43 | 0.49 | 1.3× the state |
| Garbage-truck share | 0.0% | 0.4% | 2.3% | 100% below the state |
| On snow, slush or ice | 13.8% | 45.1% | 6.2% | 69% below the state |
| Morning rush (6–10 am) | 20.7% | 23.4% | 23.7% | 12% below the state |
| In rain, sleet or snow | 8.1% | 25.0% | 13.8% | 68% below the state |
| Winter months (Nov–Mar) | 41.4% | 59.3% | 41.9% | 30% below the state |
| After dark | 25.3% | 32.8% | 24.8% | 23% below the state |
Big Horn County sits below Wyoming on crashes per 100k residents / yr, garbage-truck share and on snow, slush or ice. It stands out for higher injuries per crash.
Big Horn County at a glance: 0 garbage-truck share of crashes is 0.0%, against 0.4% for Wyoming.
Overview
Since 2015, 92 crashes involving commercial trucks have been reported in Big Horn County. They injured 51 people and killed 4.
That averages about one truck crash every 46 days in fully reported years.
When crashes happen
Truck crashes peak in July (13.0% of the year) and are lowest in March (4.3%).
The five winter months (November to March) hold 41.4% of truck crashes, against 59.3% across Wyoming.
By time of day, 1–2 pm stands out with 10.9% of truck crashes.
13.8% of truck crashes here happened on snow, slush or ice, against 45.1% across Wyoming.
Where crashes happen
Since 2015, fatal crashes with a large truck within 10 miles of ZIP 82420 happened on US-14A (1) and US-310 (1); no road leads clearly.
Garbage & waste trucks
Since 2015, no garbage-truck crashes were reported for Big Horn County.
Route planning tips for ZIP 82420 fleets
- Plan July schedules with more margin; it is the worst month for truck crashes in Big Horn County.
- Paste your stops into the free Route Planner to see the risk score, safer alternatives and low bridges.
About the data
Crash counts come from the FMCSA crash file (police-reported crashes involving trucks over 10,000 lb); fatal-crash locations come from NHTSA FARS. Text on this page states only what these numbers show.
Truck crashes by year: all trucks vs garbage trucks
Seasonality: when trucks crash in Big Horn County
By hour of day
Most dangerous roads for trucks
| Road | Fatal truck crashes since 2015 (within 10 miles) |
|---|---|
| US-14A | 1 |
| US-310 | 1 |
Roads named most in all truck crash reports
| Road | Truck crashes since 2015 (Big Horn County) |
|---|---|
| Us 14 Mp 31.26 | 2 |
| Us 14/Us 16/Us 20 | 2 |
| Us 14A Mp 70.42 | 2 |
| Us 16 Mp 186.31 | 2 |
| Us 16/Us 20/Wy 789 | 2 |
| Us 310/Wy 789 Mp 246.10 | 2 |
| Wy 37 & Us 14A | 2 |
| Cr L 13A/Lane 13 A | 1 |
ZIP 82420 at a glance
| Population | 822 |
| Density | 6 per sq mi |
| Median household income | $77,679 |
| Median home value | $234,380 |
| Home ownership | 83% |
Waste facilities and haulers nearby
Historical data: truck crashes in Big Horn County since the 1990s
Combines the FMCSA crash file (all reported truck crashes, real coverage from about 1990) with NHTSA FARS (fatal crashes involving a large truck, 1982–2024).
| Decade | Truck crashes / yr | Change | Fatal crashes / yr (FARS) |
|---|---|---|---|
| 1990s | 5 | — | 0.6 |
| 2000s | 5 | -7% | 0.5 |
| 2010s | 10 | +98% | 0.4 |
| 2020s | 6 | -32% | 0.2 |
Reported truck crashes averaged 5 a year in the 1990s and 6 a year in the 2020s. Reporting practices changed over time, so part of any change can come from reporting. NHTSA counts 0.2 fatal large-truck crashes a year in 2016–19 and 0.2 a year in 2020–24.
Nearby ZIP codes
Questions fleets ask about ZIP 82420
How common are truck crashes in ZIP 82420?
92 truck crashes have been reported in Big Horn County since 2015, with 4 deaths and 51 injuries.
Which month has the most truck crashes in ZIP 82420?
Truck crashes in Big Horn County peak in July, with 13.0% of the year's crashes.
How many garbage truck accidents happen in ZIP 82420?
0 crashes involving garbage or refuse trucks have been reported in Big Horn County since 2015, 0.0% of all truck crashes.
How does ZIP 82420 compare with Wyoming for truck crashes?
The yearly rate is 65.5 truck crashes per 100,000 residents in Big Horn County, vs 187.2 for Wyoming.
What is the best way to plan truck routes in ZIP 82420?
Paste your stops into the free CurbWaste Route Planner: it scores your route against fatal-crash locations, suggests safer alternatives and flags low bridges.
2026 is a partial year. Updated October 2026.